<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./assset/bootstrap@5.3.0/css/bootstrap.min.css">
</head>
<body>
    <!-- 导航条 -->
    <nav class="navbar navbar-expand-lg bg-primary">
        <div class="container-fluid">
          <a class="navbar-brand" href="#">Navbar</a>
          <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>
          <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav me-auto mb-2 mb-lg-0">
              <li class="nav-item">
                <a class="nav-link active" aria-current="page" href="#">Home</a>
              </li>
              <li class="nav-item">
                <a class="nav-link" href="#">Link</a>
              </li>
              <li class="nav-item dropdown">
                <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
                  Dropdown
                </a>
                <ul class="dropdown-menu">
                  <li><a class="dropdown-item" href="#">Action</a></li>
                  <li><a class="dropdown-item" href="#">Another action</a></li>
                  <li><hr class="dropdown-divider"></li>
                  <li><a class="dropdown-item" href="#">Something else here</a></li>
                </ul>
              </li>
              <li class="nav-item">
                <a class="nav-link disabled">Disabled</a>
              </li>
              <li class="nav-item d-flex">
                    <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
                    <button class="btn btn-outline-success" type="submit">Search</button>
              </li>
            </ul>
<!--            <div class="d-flex " >-->
<!--                <a class="nav-link px-3" href="#">登录</a>-->
<!--                <a class="nav-link px-3" href="#">注册</a>-->
<!--            </div>-->
          </div>
        </div>
      </nav>
    <!-- \导航条 -->

    <h1>首页</h1>
    
    <!-- \表单 -->
    

    <script src="./assset/bootstrap@5.3.0/js/bootstrap.bundle.min.js"></script>
    <script>
        let navbarSupportedContent=document.querySelector("#navbarSupportedContent");
        //从sessionStorage中获得数据
        let infoString= sessionStorage.getItem("info");
        let loginMsg =JSON.parse(infoString);

        let loginDom=`<div class="d-flex " >
                       <a class="nav-link px-3" href="#">登录</a>
                       <a class="nav-link px-3" href="#">注册</a>
                      </div>`;

        if(loginMsg){
           loginDom=`<div class="d-flex " >
                             <a class="nav-link px-3" href="#">${loginMsg.user.nickName}</a>
                           </div>`;
        }
        let subDom = document.createRange().createContextualFragment(loginDom);

        navbarSupportedContent.append(subDom)
    </script>
</body>
</html>